[expo] Delete TYPESCRIPT.md (#15918)
[expo] Delete TYPESCRIPT.md (#15918)

This file was just a message that is no longer relevant. Migration to TS is done.
exponent/exponent,exponent/exponent,exponentjs/exponent,exponentjs/exponent,exponent/exponent,exponent/exponent,exponent/exponent,exponentjs/exponent,exponent/exponent,exponent/exponent,exponent/exponent,exponentjs/exponent,exponentjs/exponent,exponentjs/exponent,exponentjs/exponent,exponentjs/exponent,exponent/exponent,exponentjs/exponent